12203303121 has 24 divisors (see below), whose sum is σ = 18063055296. Its totient is φ = 7934824800.

The previous prime is 12203303107. The next prime is 12203303141. The reversal of 12203303121 is 12130330221.

12203303121 is a `hidden beast` number, since 1 + 2 + 20 + 330 + 312 + 1 = 666.

It is not a de Polignac number, because 12203303121 - 2¹¹ = 12203301073 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12203303094 and 12203303103.

It is not an unprimeable number, because it can be changed into a prime (12203303141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248796 + ... + 293778.

It is an arithmetic number, because the mean of its divisors is an integer number (752627304).

Almost surely, 2^12203303121 is an apocalyptic number.

It is an amenable number.

12203303121 is a deficient number, since it is larger than the sum of its proper divisors (5859752175).

12203303121 is a wasteful number, since it uses less digits than its factorization.

12203303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45733 (or 45730 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12203303121 its reverse (12130330221), we get a palindrome (24333633342).

The spelling of 12203303121 in words is "twelve billion, two hundred three million, three hundred three thousand, one hundred twenty-one".